duration

An amount of time or a particular time interval.

Noun

An amount of time or a particular time interval.
- The duration of the flight will be about 2 hours 45 minutes.
- She was moaning for the entire duration of the advert break.
- an intermission of 15 minutes' duration
The time taken for the current situation to end, especially the current war.
- Rationing will last at least for the duration.
A measure of the sensitivity of the price of a financial asset to changes in interest rates, computed for a simple bond as a weighted average of the maturities of the interest and principal payments associated with it.

From Middle English duracioun, from late Old French duracion, from Medieval Latin dūrātiō.